ON-TRACS : Rapid rail tension measurment system

大多数现代铁路设施都使用“连续焊接轨道”，由于缺乏伸缩节，因此根据将要经历的极端温度确定预张力。为了在服务期间保持安全运行，有必要在现场测量残余钢轨张力（或压缩）的方法。目前的方法耗时且具有侵入性，限制了其应用。新方法的概念将产生一个更快，非侵入性和更方便的测量方法。

Most modern rail installations use a 'continuously welded rail' which, because of the lack ofexpansion joints, is laid with a pre- tension as determined by the temperature extremes to beexperienced. In order to maintain safe operation during service it is necessary to have amethod of measuring residual rail tension (or compression) in situ.Current methods are time consuming and invasive, limiting their application. The concept of anew method to produce a much faster, non invasive and more convenient method ofmeasurement will be demonstrated.